hematogenesis definition
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Definitions &Translations Princeton's WordNet(0.00 / 0 votes)Rate this definition: hematopoiesis, haematopoiesis, hemopoiesis, haemopoiesis, hemogenesis, haemogenesis, hematogenesis, haematogenesis, sanguification(noun) the formation of blood cells in the living body (especially in the bone marrow)
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Oogenesis Oogenesis, ovogenesis, or oögenesis /ˌoʊ.əˈdʒɛnᵻsɪs/ is the differentiation of the ovum (egg cell) into a cell competent to further development when fertilized. It is developed from the primary oocyte by maturation. 1 Oogenesis in mammals 1.1 The creation of oogonia.
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Spermatogenesis - Male reproductive physiology Spermatogenesis is a complex process by which primitive, totipotent stem cells divide to either renew themselves or produce daughter cells that become spermatozoa. These processes occur within the seminiferous tubules of the testis.
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hemogenesis [he″mah-to-poi-e´sis] the formation and development of blood cells. In the embryo and fetus it takes place in a variety of sites including the liver, spleen, thymus, lymph nodes, and bone marrow; from birth throughout the rest of life it is mainly in the bone marrow with a small amount occurring in lymph nodes.
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- Definition of Hematopoiesis. Hematopoiesis is the process of production, multiplication, and specialization of blood cells in the bone marrow. It is the technical term for blood cell production and you will see the word hematopoietic used in terms such as hematopoietic cell transplantation and hematopoietic malignancies. The term hematopoiesis describes the process of blood cell development, from stem cell, through differentiation, to a mature blood cell.
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Hematology Hematology, also spelled haematology, is the branch of medicine concerned with the study of the cause, diagnosis, treatment, and prevention of diseases related to blood. It involves treating diseases that affect the production of blood and its components, such as blood cells, hemoglobin, blood proteins, bone marrow, platelets, blood vessels, spleen, and the mechanism of coagulation. Such diseases might include hemophilia, blood clots, other bleeding disorders and blood cancers such as leukemia,
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- the formation of and development of blood cells outside the bone marrow, as in the spleen, liver and lymph nodes. fetal hematopoiesis. in embryogenesis migration of stem cells from the yolk sac blood islands sets up hematopoiesis in thymus, lymph nodes, liver and spleen.
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- Hematopoiesis is the general term meaning blood cell formation. Erythropoiesis is specifically the formation of red blood cells.
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angiogenesis The origination and development of new capillary blood vessels in normal or malignant tissue. Angiogenesis is necessary so that a growing or enlarging tissue, with its increasing metabolic needs, obtains an adequate blood supply providing oxygen, nutrients and waste drainage.
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- Definition of hematopoiesis. : the formation of blood or of blood cells in the living body.
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What is spermatogenesis? exists and is an alternate of . Spermatogenesis is the development of mature spermatozoa (sperm cells) from spermatogonia; it includes spermatocytogenesis and spermiogenesis. This gives them their characteristic shape from a round cell to the head and elongated tail. The cytoplasm is remodeled.
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Haematopoiesis Diagram showing the development of different blood cells from haematopoietic stem cell to mature cells. Haematopoiesis (from Greek αἷμα, blood and ποιεῖν to make; also hematopoiesis in American English; sometimes also haemopoiesis or hemopoiesis) is the formation of blood cellular components.hen bone marrow develops, it eventually assumes the task of forming most of the blood cells for the entire organism. However, maturation, activation, and some proliferation of lymphoid cells occurs in secondary lymphoid organs (spleen, thymus, and lymph nodes).
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Medical Definition of Hematopoiesis home / medterms medical dictionary a-z list / hematopoiesis definition Medical Definition of Hematopoiesis Hematopoiesis: The production of all types of blood cells including formation, development, and differentiation of blood cells. Prenatally, hematopoiesis occurs in the yolk sack, then in the liver, and lastly in the bone marrow. In the normal situation, hematopoiesis in adults occurs in the bone marrow and lymphatic tissues. All types of blood cells are derived from primitive cells that are pluripotent (they have the potential to develop into all types of blood cells).
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- Blood cells are constantly formed through a process called hematopoiesis (also called hemopoiesis). The hematopoietic stem cells—those that give rise to blood cells—originate in the yolk sac of the human embryo and then migrate to the liver. Hematopoiesis thus occurs in the liver of the fetus. The stem. Heart and Circulation cells then migrate to the bone marrow, and shortly after birth the liver ceases to be a source of blood cell production.
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- Author Affiliations. Recruitment of hematopoietic stem/progenitor cells (HSC) from the bone marrow into peripheral blood following treatment with chemotherapy and/or cytokines is termed mobilization.
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What Is Diagenesis in Geology? Definition: Diagenesis is the name for a wide range of changes that affect sediments during their progress to become sedimentary rocks: after they are laid down, while they are becoming rock, and before they first undergo metamorphism.ate diagenesis, or epigenesis, covers everything that may happen to sedimentary rock between consolidation and the lowest stage of metamorphism. Emplacement of sedimentary dikes, growth of new minerals (authigenesis) and various low-temperature chemical changes (hydration, dolomitization) mark this stage.
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- Medical Definition of hematopoiesis. plural. hematopoieses. \-ˌsēz\play. : the formation of blood or of blood cells in the living body—called also hemopoiesis.
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Blood Formation Blood Formation Hemopoiesis ( hematopoiesis) is the process that produces the formed elements of the blood. Hemopoiesis takes place in the red bone marrow found in the epiphyses of long bones (for example, the humerus and femur), flat bones (ribs and cranial bones), vertebrae, and the pelvis.
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What is Hematology? Hematology is a branch of medicine concerning the study of blood, the blood-forming organs, and blood diseases. The word heme comes from the Greek for blood.
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Diagenesis From Wikipedia, the free encyclopedia. Diagenesis /ˌdaɪəˈdʒɛnəsɪs/ is the change of sediments or existing sedimentary rocks into a different sedimentary rock during and after rock formation (lithification), at temperatures and pressures less than that required for the formation of metamorphic rocks. It does not include changes from weathering.
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Medical Definition of Hematopoiesis Prenatally, hematopoiesis occurs in the yolk sack, then in the liver, and lastly in the bone marrow. In the normal situation, hematopoiesis in adults occurs in the bone marrow and lymphatic tissues. All types of blood cells are derived from primitive cells (stem cells) that are pluripotent (they have the potential to develop into all types of blood cells).
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hematology the branch of medical science dealing with the blood and blood-forming tissues, including morphology, physiology, and pathology. adj., adj hematolog´ic. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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When 'life support' is really 'death support' Brain dead, but kept alive. Here's a quick overview of the two situations: Doctors in Oakland, California, declared Jahi McMath, 13, to be brain dead on December 12, three days after she underwent surgery to remove her tonsils, adenoids and extra sinus tissue, which doctors thought were causing sleep apnea.
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- Hematology definition, the study of the nature, function, and diseases of the blood and of blood-forming organs. See more.
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extramedullary hematopoiesis extramedullary hematopoiesis. the formation of and development of blood cells outside the bone marrow, as in the spleen, liver and lymph nodes. fetal hematopoiesis. in embryogenesis migration of stem cells from the yolk sac blood islands sets up hematopoiesis in thymus, lymph nodes, liver and spleen.
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metaplasia the change in the type of adult cells in a tissue to a form abnormal for that tissue. adj., adj metaplas´tic. 1  agnogenic myeloid metaplasia the primary or idiopathic form of myeloid metaplasia, which is often accompanied by myelofibrosis; it is considered one of the myeloproliferative disorders.